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Old 09-23-2019, 10:26 AM   #1
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Default Efficacy of Solar in 2019

Well here we are in the year 2019.

When it comes to turning on your car headlights as the day gets darker, I was taught to turn them on when half the other cars have theirs on. If I relate that to solar, it's not time. But I'm curious about it.

I'd expect having solar on my roof would lessen my heat gain in the building? I have a 90 lb modified bit roof. Covering that, at least partially, would reduce heat gain.

I pay for about 4k kWh of electricity per month (4MWh).

I have 2 services, both 200A 120/208 Y.

How much would it cost me today to install solar using an EC?
What's my power bill going to be?
How long will the system last?

You'd think my highest energy consumption would be the reflow oven, but it's not. It's the A/C.
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Old 09-27-2019, 09:21 PM   #2
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Well here we are in the year 2019.

When it comes to turning on your car headlights as the day gets darker, I was taught to turn them on when half the other cars have theirs on.
I would have figured your headlights would have been controlled by a GPS light lock
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Old 09-27-2019, 10:26 PM   #3
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Now that we've been making some 12V units that just might happen. At least an indicator light.
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Old 10-19-2019, 08:47 PM   #4
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I was in a continued ed class a while back and it was covering solar. Very interesting and informative!. Several key notes I took away from it:

1) The solar market/trade is changing so much, that its absolutely impossible to keep up with all the installation standards. If you are a solar contractor right now and you decided to get out for a year or two, when you get back in the industry will have changed so much that it you wouldn't be able to pick it back up without dealing with a huge learning curve.

2) lots of turn over in the solar business

3) the BIGGEST hurdle that the contractors face is the 100's of roof penetrations that get made on every project. That's a lot of worry if you ask me.
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Old 10-19-2019, 09:11 PM   #5
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Get a free quote and listen to the sales pitch. You should be able to gather enough information with a few questions to backwards engineer what they are selling.
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Old 10-19-2019, 09:25 PM   #6
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Now that we've been making some 12V units that just might happen. At least an indicator light.
Not sure if that would sell. Both my car and truck turn on the lights automatically with the light sensor on the dash.

Back in the day, rule was half hour before sunset to have your lights on.
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Old 10-19-2019, 09:28 PM   #7
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Get a free quote and listen to the sales pitch. You should be able to gather enough information with a few questions to backwards engineer what they are selling.
I think finding a good manufacturers is the big problem. Knowing that you could buy some high end equipment today, but they might not be around for you to get parts and service next year doesn't sit right with me. The installation process probably isn't to hard to peice together.
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Old 10-19-2019, 09:50 PM   #8
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Quote:
Originally Posted by MikeFL View Post
Well here we are in the year 2019.

When it comes to turning on your car headlights as the day gets darker, I was taught to turn them on when half the other cars have theirs on. If I relate that to solar, it's not time. But I'm curious about it.

I'd expect having solar on my roof would lessen my heat gain in the building? I have a 90 lb modified bit roof. Covering that, at least partially, would reduce heat gain.

I pay for about 4k kWh of electricity per month (4MWh).

I have 2 services, both 200A 120/208 Y.

How much would it cost me today to install solar using an EC?
What's my power bill going to be?
How long will the system last?

You'd think my highest energy consumption would be the reflow oven, but it's not. It's the A/C.
Mike,
You have to jump on the merry go round at some point.
Once you have the racks installed and the inverter installed, the system should should be both scale able and upgradable.
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